How can tartar and plaque be removed from teeth without grinding? is there any paste, etc. for it?
The girders of a suspension bridge form an arc. The definition of an arc is a curve or bowed shape, like a part of a circle. An example of an arc is a rainbow. To arc is defined as to make a curved shape or move in a curved path.
Community Q&A. An arc is any portion of the circumference of a circle. Arc length, represented by ââsââ, is the distance from one endpoint of the arc to the other. Finding an arc length requires knowing a bit about the geometry of a circle.